Should I replace my chipped key or lock cylinder first?

Should I replace my chipped key or lock cylinder first?

You do not need to replace the key, lock cylinder, or theft‑deterrent module just to use the PRO Module. The PRO Module lets you avoid all of those replacements.

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    • My car doesn’t have a chipped key. Will the PRO Module still work?

      Yes. Many supported vehicles use Passlock‑style sensors without a visible chip in the key. As long as your vehicle is on our compatibility list, the PRO Module is designed for it, with or without a visible chip.

    • Why Is The Security Light On In My Car?

      On many GM/Isuzu vehicles, a steady or flashing security light usually means the factory immobilizer (Passkey/Passlock/VATS) is seeing a problem with the key, lock cylinder, wiring, or theft‑deterrent module and may start disabling the engine.

    • What is a Passlock / Passkey / VATS system?

      It’s GM’s factory engine immobilizer. Depending on the year/model it may be called Passkey, VATS, Passlock, etc., but they all work by checking a signal from the key/lock and then sending an “OK” signal to the engine computer to allow fuel.

    • My car won’t start at all. Can I still use the PRO Module?

      Yes. The PRO Module is specifically intended for cars that are already no‑start because of immobilizer failure. You don’t need the car to start first to install it.

    • What warranty or guarantee do you offer?

      Every PRO Module comes with a 30‑day money‑back guarantee and a lifetime replacement warranty. If the module ever fails, we’ll replace it for as long as you own it.